Package org.elasticsearch.search.suggest.phrase

Class DirectCandidateGenerator

java.lang.Object
org.elasticsearch.search.suggest.phrase.CandidateGenerator
org.elasticsearch.search.suggest.phrase.DirectCandidateGenerator
public final class DirectCandidateGenerator
extends CandidateGenerator

  • Nested Class Summary

    Nested Classes 
    Modifier and Type Class Description
    static class  DirectCandidateGenerator.Candidate  
    static class  DirectCandidateGenerator.CandidateSet  
    static class  DirectCandidateGenerator.TokenConsumer  

  • Constructor Summary

    Constructors 
    Constructor Description
    DirectCandidateGenerator​(org.apache.lucene.search.spell.DirectSpellChecker spellchecker, java.lang.String field, org.apache.lucene.search.spell.SuggestMode suggestMode, org.apache.lucene.index.IndexReader reader, double nonErrorLikelihood, int numCandidates)  
    DirectCandidateGenerator​(org.apache.lucene.search.spell.DirectSpellChecker spellchecker, java.lang.String field, org.apache.lucene.search.spell.SuggestMode suggestMode, org.apache.lucene.index.IndexReader reader, double nonErrorLikelihood, int numCandidates, org.apache.lucene.analysis.Analyzer preFilter, org.apache.lucene.analysis.Analyzer postFilter, org.apache.lucene.index.Terms terms)  

  • Method Summary

    Modifier and Type Method Description
    static int analyze​(org.apache.lucene.analysis.Analyzer analyzer, org.apache.lucene.util.BytesRef toAnalyze, java.lang.String field, DirectCandidateGenerator.TokenConsumer consumer, org.apache.lucene.util.CharsRefBuilder spare)  
    static int analyze​(org.apache.lucene.analysis.TokenStream stream, DirectCandidateGenerator.TokenConsumer consumer)
    NOTE: this method closes the TokenStream, even on exception, which is awkward because really the caller who called Analyzer.tokenStream(java.lang.String, java.io.Reader) should close it, but when trying that there are recursion issues when we try to use the same TokenStream twice in the same recursion...
    DirectCandidateGenerator.Candidate createCandidate​(org.apache.lucene.util.BytesRef term, org.apache.lucene.codecs.TermStats termStats, double channelScore, boolean userInput)  
    DirectCandidateGenerator.CandidateSet drawCandidates​(DirectCandidateGenerator.CandidateSet set)  
    java.lang.String getField()  
    org.apache.lucene.codecs.TermStats internalTermStats​(org.apache.lucene.util.BytesRef term)  
    boolean isKnownWord​(org.apache.lucene.util.BytesRef term)  
    protected void postFilter​(DirectCandidateGenerator.Candidate candidate, org.apache.lucene.util.CharsRefBuilder spare, org.apache.lucene.util.BytesRefBuilder byteSpare, java.util.List<DirectCandidateGenerator.Candidate> candidates)  
    protected org.apache.lucene.util.BytesRef preFilter​(org.apache.lucene.util.BytesRef term, org.apache.lucene.util.CharsRefBuilder spare, org.apache.lucene.util.BytesRefBuilder byteSpare)  
    org.apache.lucene.codecs.TermStats termStats​(org.apache.lucene.util.BytesRef term)  

    Methods inherited from class org.elasticsearch.search.suggest.phrase.CandidateGenerator

    createCandidate, createCandidate, drawCandidates

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • DirectCandidateGenerator

      public DirectCandidateGenerator​(org.apache.lucene.search.spell.DirectSpellChecker spellchecker, java.lang.String field, org.apache.lucene.search.spell.SuggestMode suggestMode, org.apache.lucene.index.IndexReader reader, double nonErrorLikelihood, int numCandidates) throws java.io.IOException
      Throws:
      java.io.IOException

    • DirectCandidateGenerator

      public DirectCandidateGenerator​(org.apache.lucene.search.spell.DirectSpellChecker spellchecker, java.lang.String field, org.apache.lucene.search.spell.SuggestMode suggestMode, org.apache.lucene.index.IndexReader reader, double nonErrorLikelihood, int numCandidates, org.apache.lucene.analysis.Analyzer preFilter, org.apache.lucene.analysis.Analyzer postFilter, org.apache.lucene.index.Terms terms) throws java.io.IOException
      Throws:
      java.io.IOException

  • Method Details

    • isKnownWord

      public boolean isKnownWord​(org.apache.lucene.util.BytesRef term) throws java.io.IOException
      Specified by:
      isKnownWord in class CandidateGenerator
      Throws:
      java.io.IOException

    • termStats

      public org.apache.lucene.codecs.TermStats termStats​(org.apache.lucene.util.BytesRef term) throws java.io.IOException
      Specified by:
      termStats in class CandidateGenerator
      Throws:
      java.io.IOException

    • internalTermStats

      public org.apache.lucene.codecs.TermStats internalTermStats​(org.apache.lucene.util.BytesRef term) throws java.io.IOException
      Throws:
      java.io.IOException

    • getField

      public java.lang.String getField()

    • drawCandidates

      public DirectCandidateGenerator.CandidateSet drawCandidates​(DirectCandidateGenerator.CandidateSet set) throws java.io.IOException
      Specified by:
      drawCandidates in class CandidateGenerator
      Throws:
      java.io.IOException

    • preFilter

      protected org.apache.lucene.util.BytesRef preFilter​(org.apache.lucene.util.BytesRef term, org.apache.lucene.util.CharsRefBuilder spare, org.apache.lucene.util.BytesRefBuilder byteSpare) throws java.io.IOException
      Throws:
      java.io.IOException

    • postFilter

      protected void postFilter​(DirectCandidateGenerator.Candidate candidate, org.apache.lucene.util.CharsRefBuilder spare, org.apache.lucene.util.BytesRefBuilder byteSpare, java.util.List<DirectCandidateGenerator.Candidate> candidates) throws java.io.IOException
      Throws:
      java.io.IOException

    • createCandidate

      public DirectCandidateGenerator.Candidate createCandidate​(org.apache.lucene.util.BytesRef term, org.apache.lucene.codecs.TermStats termStats, double channelScore, boolean userInput) throws java.io.IOException
      Specified by:
      createCandidate in class CandidateGenerator
      Throws:
      java.io.IOException

    • analyze

      public static int analyze​(org.apache.lucene.analysis.Analyzer analyzer, org.apache.lucene.util.BytesRef toAnalyze, java.lang.String field, DirectCandidateGenerator.TokenConsumer consumer, org.apache.lucene.util.CharsRefBuilder spare) throws java.io.IOException
      Throws:
      java.io.IOException

    • analyze

      public static int analyze​(org.apache.lucene.analysis.TokenStream stream, DirectCandidateGenerator.TokenConsumer consumer) throws java.io.IOException
      NOTE: this method closes the TokenStream, even on exception, which is awkward because really the caller who called Analyzer.tokenStream(java.lang.String, java.io.Reader) should close it, but when trying that there are recursion issues when we try to use the same TokenStream twice in the same recursion...
      Throws:
      java.io.IOException